QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

123 km NNE of Suárez, Puerto Rico

· 46 km deep · released about 360 lb of TNT

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Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.7 (md)
Depth
46 km below the surface
Felt
no reports yet
Nearest
Loíza Municipio, 125 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2558 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 360 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 42,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 30,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.6× the energy of this one
  4. This earthquake M 2.7 about 360 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 19.5151, -65.5903. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loíza Municipio, PR 125 km (77 mi) NNE of here earthquakes near Loíza Municipio
Cataño Municipio, PR 133 km (82 mi) NNE of here earthquakes near Cataño Municipio
Toa Baja Municipio, PR 134 km (83 mi) NNE of here earthquakes near Toa Baja Municipio
Dorado Municipio, PR 136 km (84 mi) NNE of here earthquakes near Dorado Municipio
Vega Baja Municipio, PR 145 km (90 mi) NE of here earthquakes near Vega Baja Municipio
Manatí Municipio, PR 152 km (95 mi) NE of here earthquakes near Manatí Municipio

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

27 earthquakes have been recorded within 50 km since this one.

  1. 3.3 126 km N of San Juan, Puerto Rico
  2. 3.3 135 km N of Charlotte Amalie, U.S. Virgin Islands
  3. 3.4 135 km N of San Juan, Puerto Rico
  4. 3.4 Puerto Rico region
  5. 3.2 130 km NNE of Vieques, Puerto Rico
  6. 2.1 81 km NNE of Suárez, Puerto Rico
  7. 2.8 84 km NNE of Vieques, Puerto Rico
  8. 3.1 95 km NNE of Luquillo, Puerto Rico
  9. 2.6 104 km N of Suárez, Puerto Rico
  10. 2.9 86 km NNE of Vieques, Puerto Rico
  11. 2.8 80 km NNE of Vieques, Puerto Rico
  12. 2.4 81 km NNE of Vieques, Puerto Rico
  13. 2.9 117 km NNE of Vieques, Puerto Rico
  14. 2.2 80 km NNE of Vieques, Puerto Rico
  15. 3.1 109 km NNE of Vieques, Puerto Rico

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

For this area

The largest earthquake within 50 km in our catalogue was M 4.5 on 2018-03-06 — it released about 470 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.